Orange Spiky Wig
Go for a spiky wig like this one. I love how this looks like – it has a very vibrant orange too and the reviews have been very positive! I would suggest trimming the lower parts and sides a bit more, though it already looks good as is if you would like to preserve it for another cosplay

Orange Striped Shirt
Go for a thick striped shirt like this one to give it that cartoony look

Blue Walking Shorts
Grab a pair of blue short pants

Blue and White Sneakers
Finish off with a hip pair of sneaks. These Puma suede shoes look cool